Loudspeaker



FIG. 1 is a front and right side perspective view of a loudspeakershowing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a bottom and left side perspective view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof.

The ornamental design for a loudspeaker, as shown and described.